Re: High K lower pole tuning DRSSTC (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Sat, 28 Oct 2006 00:08:28 -0500
From: Joshua Gutfriend <josh123spartan@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: High K lower pole tuning DRSSTC (fwd)

If I increase the primary L instead of increasing the capacitance then I 
would be able to give better exitation of the secondary and create a slower 
wave system so it has just a bit faster energy transfer and keep the peak 
power the same while kepping the lower secondary lower pole frequency making 
it more efficient because the losses are less.

Josh


>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: Re: High K lower pole tuning DRSSTC (fwd)
>Date: Fri, 27 Oct 2006 19:19:32 -0600 (MDT)
>
>Original poster: List moderator <mod1@xxxxxxxxxx>
>
>
>
>---------- Forwarded message ----------
>Date: Fri, 27 Oct 2006 17:59:09 -0700
>From: Jimmy Hynes <jphynes@xxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: High K lower pole tuning DRSSTC (fwd)
>
>Hi,
>
>You could do that, but there are also disadvantages of higher coupling.
>
>1. You already mentioned the racing sparks, and 0.385 sounds like an
>awefully high goal.
>
>2. Faster energy transfer can be a disadvantage as well. Faster means
>more peak current.
>
>The shorter on times do seem to do better for a given bang energy, but
>as long as you arent more than a dozen cycles or so, it seems to do
>alright. I was able to get 5' sparks with just a half bridge and 30
>cycles, as opposed to a full bridge at 14 cycles getting 8'. The
>performance does drop off, but you can get good results at 10 cycles
>instead working towards 1.5 cycles.
>
>I don't mean to be discouraging though, it could definitely work. I
>say go for it, see what you learn. If obtaining high enough coupling
>and peak current is a problem, you can always back off a bit and have
>a 'regular' DRSSTC. It's cool that you're getting an early start on
>this stuff. If I remember correctly, I was about 15 and somewhat of a
>newbie as well when I started my DRSSTC work.
>
>Good luck!
>-Jimmy Hynes
>
>
>On 10/27/06, Tesla list <tesla@xxxxxxxxxx> wrote:
> > Original poster: List moderator <mod1@xxxxxxxxxx>
> >
> >
> >
> > ---------- Forwarded message ----------
> > Date: Fri, 27 Oct 2006 18:23:00 -0500
> > From: Joshua Gutfriend <josh123spartan@xxxxxxxxxxx>
> > To: tesla@xxxxxxxxxx
> > Subject: High K lower pole tuning DRSSTC
> >
> > I've done a lot of reasearch on DRSSTCs and it occured to me that if you
> > increase the K then you could lower the lower pole of the frecquency 
>split.
> > That would decrease the losses in the secondary wire, increase the speed 
>of
> > energy transfer, and allow increase in tank capacity. Then to counteract 
>the
> > racing spark you could just make the secondary mineral oil filled. I was
> > thinking of a K of 0.385 because it a "magic K" value while the K is 
>still
> > high. Apreciative of any input. P.S. I'm 13 and a newbie.
> >
> >
> > Josh
> >
> > _________________________________________________________________
> > Buy, Load, Play. The new Sympatico / MSN Music Store works seamlessly 
>with
> > Windows Media Player. Just Click PLAY.
> > 
>http://musicstore.sympatico.msn.ca/content/viewer.aspx?cid=SMS_Sept192006
> >
> >
> >
> >
>
>
>

_________________________________________________________________
Experience Live Search from your PC or mobile device today. 
http://www.live.com/?mkt=en-ca